Solid piece of equipmentBy Christopheron 12/24/2014

This is one strong magnet. It does a great job cleaning the glass. The only drawback I have found is that it is hard to grip.

Strong bond. Larger than expected. By Jasperon 10/22/2014

Jasper would recommend this product to a friend

I purchased the smallest size, and it's quite a bit larger than I expected. Expect to have trouble getting into tight spots, but very rapidly clean open areas.

The magnet bonds stronger than all other scrubbers I have used. I don't feel like I'll loose the inside piece if I move too quickly. It's secure and scrubs well.

Even works on Coraline By Johnny Seaon 9/23/2014

Johnny Sea would recommend this product to a friend

Purchased the Piranha and it is strong enough to even work through built up Coraline. Like others have said be careful with these they will snap together and catch your finger! If you let these get together without something in between be ready for a workout.

much better than a mag floatBy markon 8/27/2014

mark would recommend this product to a friend

upgraded to a 1/2" thick acrylic tank, and the largest mag float I could buy locally just wouldn't stay connected, this is powerful and the pad they sent really scrubs well without scratching

love it!By Jenniferon 6/3/2014

Jennifer would recommend this product to a friend

I love this cleaner. the magnet is super strong, cleans really well and it has a much better look to it then a chunk of plastic for a magnetic cleaner. It would be kinda cool if they had different wood colors so you could match it to your stand. but it is a much more polished look than the others out there.

works like it says!By reef geek on 3/14/2014

reef geek would recommend this product to a friend

works perfect on my acrylic just have to wash the pad a little to make sure theres no sand or debris and you wont scratch otherwise yes it is very powerful magnet and will leave a nice owy

Pay attention before use!By AlexLon 2/6/2014

AlexL would recommend this product to a friend

It works just as stated. Only thing you must be careful with is that the magnet catches from the back side of the scrubber also. And if there's any hard build up, and you swipe, you more likely will scratch your glass. That's how i got a 6 inch scratch in my front glass :(
So please be aware of what side it's on before use.
Other than that its the best magnet scrubber ever used.

Great productBy Smallreefon 1/14/2014

Smallreef would recommend this product to a friend

I have always had Mag floats; but with this new very thick acrylic tank, it just wouldn't hold on, let alone clean anything. Ordered the Floating Tiger Shark and I have to say I am very pleased; not only with its hold...these magnets are strong, but the cleaning ability, and the extra pads included. I feel this magnetic cleaner will last me much longer than any product I have previously used.

great product and very strong magnetBy turbotone on MRon 1/13/2014

turbotone on MR would recommend this product to a friend

I've owned a few different types of magnetic cleaners and these are above them all.. what i would recommend is do not go with the plus 1 method with these bad boys.. get what your need in your size criteria.. these magnets are strong!!! a few swipes and its clean.. i could only imagine a stronger one will be very difficult to move.. definitely would recommend..

Beast mode magnetBy Collinon 12/15/2013

Collin would recommend this product to a friend

This magnet is industrial strength. After a few pushes across the glass, your arm will get tired---and that's a good thing! Lots of power to clean those stubborn algae spots.

This is easily one of the best investments I've made for my tank. The upfront cost may seem like a bit much, but in this hobby, you get what you pay for. Totally worth the purchase.

It also includes an extra felt and scrubber pad.

Tip: Keep the magnets apart when not in use, or else you'll stick the felt onto the cleaning pad.

Best magnet I ever ownedBy Matton 12/6/2013

Matt would recommend this product to a friend

I purchased the Piranha Float black Fri/ The magnets are SUPER strong! You really have to put some effort into it in order to get it to slide. It gets the glass clean in only 3-5 passes.

Good productBy Shawnon 11/5/2013

Shawn would recommend this product to a friend

These glass cleaners work extremely well and will remove calcified algae from your glass with little effort. I find the pads don't wear nearly as long as I'd like but with magnets this strong it's easy to understand why. I find if I use glass polish before cleaning my glass things move much more easily and makes the felt side last long due to reduced friction.